Panel (a) shows the Level-1 processed spectra corresponding to the four slits in VELC. The slit numbers are indicated near the top of each slit. The spectra was obtained with two-pixel spatial binning (vertical axis) and thus has dimensions 1280 × 2160. Gain is 1×. Exposure time is 5 s. There is no binning in the spectral direction (horizontal axis). The nonobservations of the full extent of slits 2 and 3 are due to the occulter (Figure 2). Panel (b) shows the average spectral profile at the spatial locations indicated by the red line in slit 1. The spectral profile is reversed, compared to the spectra in panel (a), to show the wavelengths in ascending order. The prominent “dips” in the profile near 5300.7 and 5302.3 Å are due to the photospheric absorption lines.